Difference between Joomla 1.5 and 1.7

Hi,

I am new to Joomla and can any answer my doubt.

I want to know the difference between Joomla 1.5 and 1.7?

Should I use Joomla 1.5 or Joomla 1.7 for creating a website ?

Thanks in advance.

Yes there is a huge difference between Joomla 1.5 and Joomla 1.7.

Joomla developer have stopped support for Joomla 1.5.

So most Joomla component / module / plugin developers have also stopped releasing updates for their Joomla 1.5 components / modules / plugins.

The features of Joomla 1.7 are:
1) One click upgrade
2) Multilanguage Improvements
3) Refined Access Control Layer
4) Faster release cycles